Roller set gauge



Oct.'28, 1941. A. TAYLOR ROLLER SET GAUGE Filed Oct; 28, 1939 vJE/ENTOR 5n ATTORNEYS Patented Oct. 28, 1941 UNITED STATES PATENT OFFICE ROLLER SET GAUGE Auburn Taylor, Charleston, W. Va.

Application October 28, 1939, Serial No. 301,702

4 Claims.

The present invention relates to a roller set indicator and more particularly to new and improved means for determining the correct setting of certain of the roller members in a rotary printing press.

Objects and advantages of the invention will be set forth in part hereinafter and in part will be obvious herefrom, or may be learned by practice with the invention, the same being realized and attained by means of the instrumentalities and combinations pointed out in the appended claims.

The invention consists in the novel parts, constructions, arrangements, combinations and improvements herein shown. and described.

The accompanying drawing, referred to herein and constituting a part hereof, illustrates one embodiment of the invention, and together with the description, serves to explain the principles of the invention.

Of the drawing:

Figure 1 is a top plan view of a typical and illustrative embodiment of the present invention;

Figure 2 is a fragmentary detailed plan view of the embodiment shown in Figure 1;

Figure 3 is a sectional View showing the roller set indicator of the present invention positioned between two members of the inking system of a rotary printing press;

Figure 4 is a sectional view taken on the line 4-4 of Figure 2; and

Figure 5 is an exploded view in perspective of the slide member forming part of the present embodiment.

The present invention has for its object the provision of a novel and improved gauge for effectively ascertaining the degree of pressure or the position of two rollers of a printing press. A further object of the invention is the provision of an improved gauge for determining the correct setting of the inking rollers in a rotary newspaper press. The invention also provides a simple, efiective and accurate means of initially setting the inking rollers of a rotary printing press so that the correct inking of the plates will be assured.

Referring now in detail to the illustrative embodiment of the invention as shown in the accompanying drawing, the gauge comprises a relatively long, thin and narrow metal strip or blade l0 which may conveniently be formed of steel, and is adapted to be inserted between two rotary members of a rotary printing press. As shown in Figure 3, the gauge is inserted between a plate cylinder H and a rubber form roller l2, but the gauge is also useable between any two rotary members, one of which is provided with a resilient surface. The blade III has a handle portion I4 and beyond that is provided with a narrow, longitudinal groove l5 extending for the major portion of the length of the strip l0 and centrally thereof, and the depth of this groove as well as the thickness of the strip I3 is preferably uniform throughout.

The bottom of the groove I5 is preferably flat and smooth, and the pressure between the cylinder II and roller l2 forces the inked surface of the form roller below the top surface of the strip I0 and into contact with the bottom of the groove IS, the width of the area of contact being determined by the pressure between the roller l2 and cylinder H, and where the roller I2 is in contact with the bottom of the groove l5, a stripe of ink is left in the groove |5 corresponding in width to the roller pressure.

Means are provided for measuring the width of the stripe of ink transferred to the bottom of groove l5, and these means may be calibrated in arbitrary units of length or in units of pressure. As embodied, an indicator slide I8 is movable along the strip l0 and is shown in detail in Figures 2, 4 and 5. This indicator comprises a rectangular base 20, a cover plate 2| and an index plate 22. The base plate 20 is channeled to receive and slide along the blade or strip II), and base 20 and plate 2| are rigidly held together by rivets passing through the holes 23. The index plate 22 is formed with a sharply bent edge 25 and with a long slot 26 through which passes a screw 21 permitting the slide 22 to be 1 moved along the parts 20 and 2| without angular movement, and a knurled nut 28 is provided to hold the index slide 22 in any desired position.

The cover plate 2| is provided with a slot 29 adapted to overlie the groove l5, and one end of the slot 29 is formed with a shoulder 30 which may be set against one edge of the ink stripe on the bottom of the groove l5. Index slide 22 is similarl provided with a shoulder 32 and the narrower portion of the index plate 22 is parallel and preferably alined with the nearer edge of the groove I5 and may be calibrated with suitable index marks in linear or pressure units.

By relatively moving the index plate 22 with reference to the remainder of the slide I8, the space between the shoulders 30 and 32 may be adjusted to form a definite gap corresponding to the correct or normal setting of the roller I2, and after the stripe has been marked on the bottom of the groove I5 the shoulders 30 and 32 are brought over the edges of the stripe so that 2 I the width of the stripe may be compared with the spacing of the shoulders.

In the use of the present invention, the roller .l2 is freed from the cylinder, the indicator is the roller sockets in the usual manner, the blade or strip H3 is removed from between the cylinder ll and 'the roller 12, and the slide l8 may then be moved until one shoulder 30 'or the other shoulder 32 is in register with one edge of the stripe. If the other shoulder registers with the other edge of the stripe, or if the stripe is of the correct width as measured on the scale, the setting of the roller is known to be correct, and when the roller is replaced in its sockets and locked up for printing, its pressure will be known to be correct.

If the setting is incorrect, of'course theroller may be adjusted to increase or decrease its pres-' sure against thecylinder H. Of "course, the roller set indicator of the present invention may also be used with rollers which are not mounted in sockets so that they may be returned to an original adjustment, and with these rollers the roller is released after the impression has been taken within the scope of the accompanying claims without departing from the principles of the invention and without sacrificing its chief advan tages.

What I claim is:

1. A gauge forsetting inking rollers including in combination a blade-like member having a surface against which the inking roller is pressed with a definite pressure, an indexing member movable along the surface and means for spacing the indexing member from the surface to prevent smudging of the impression of the roller on the surface.

2. A gauge for setting inking rollers including in combination a blade-like member, a narrow fiat surface recessed in said member and an indexing member slidable along the blade-like member for measuring the stripe made by an inking roller pressed against the surface.

3. A gauge for setting inking rollers including in combination a blade-like member, a narrow groove in said member having a flat surface, an index slide movable along the blade and out of contact with the surface for measuring the stripe made by an inking roller pressed against the surface.

4. A gauge for setting inking rollers including in combination a blade-like member, a narrow groove in said member having a flat surface, an index slide movable along the blade and out of contact with the surface for measuring the stripe made b an inkin roller pressed against the surface, said index slide having a movable part which can be set to indicate the correct width for AUBURN TAYLOR. 

